· 2015. 3. 14. · B 47 B 46. Table 1 Standard Cages for Angular Contact Ball Bearings. α....

Rolling Bearings

Rolling B

earings

転がり軸受け（英）／転がり軸受け（英）//表1-4／2008/10/01

CAT. No. E1102f 2008 E-10 Printed in Japan ©NSK Ltd. 1989

n851374

Typewritten Text

Angular Contact Ball Bearings

B 47B 46

Table 1 Standard Cages for Angular Contact Ball Bearings

αContactangle

ANGULAR CONTACT BALL BEARINGSSINGLE-ROW AND MATCHEDANGULAR CONTACT BALL BEARINGS

Bore Diameter 10 – 50mm ············· B50Bore Diameter 60 – 120mm ············· B56Bore Diameter 130 – 200mm ············· B62

DOUBLE-ROW ANGULAR CONTACT Bore Diameter 10 – 85mm ············· B66

BALL BEARINGSFOUR-POINT CONTACT BALL BEARINGS

Bore Diameter 30 – 200mm ············· B68

DESIGN, TYPES, AND FEATURES

SINGLE-ROW ANGULAR CONTACT BALL BEARINGSSince these bearings have a contact angle, they can sustain significant axial

loads in one direction together with radial loads. Because of their design, whena radial load is applied, an axial force component is produced; therefore, twoopposed bearings or a combination of more than two must be used.

Since the rigidity of single-row angular contact ball bearings can beincreased by preloading, they are often used in the main spindles of machinetools, for which high running accuracy is required. (Refer to Chapter 10,Preload, Page A96).

Usually, the cages for angular contact ball bearings with a contact angle of30° (Symbol A) or 40°(Symbol B) are in accordance with Table 1,butdepending on the application, machined synthetic resin cages or moldedpolyamide resin cages are also used. The basic load ratings given in thebearing tables are based on the cage classification listed in Table 1.

Though the figures in the bearing tables (Pages B50 to B61; bearing borediameters of 10 to 120) show bearings with single-shoulder-type inner rings,both-shoulder-type bearings are also available. Please consult NSK for moredetailed information.

In addition, for bearings with the same serial number, if the type of cagesare different, the number of balls may also be different. In such a case, theload rating will differ from the one listed in the bearing tables.

Angular Contact Ball Bearings with contact angles of 15° (Symbol C) and25° (Symbol A5) are primarily for high precision or high speed applications,and machined brass or synthetic resin cages or molded polyamide cages areused.

The maximum operating temperature of molded polyamide cages is 120°C.

Series Pressed Steel Cages Machined Brass Cages

79A5, C — 7900 – 7940

70A 7000 – 7018 7019 – 7040

70C — 7000 – 7022

72A, B 7200 – 7222 7224 – 7240

72C — 7200 – 7240

73A, B 7300 – 7320 7321 – 7340

Figure Arrangement Features

B 49B 48

Table 2 Types and Features of Matched Angular Contact Ball Bearings

MATCHED ANGULAR CONTACT BALL BEARINGSThe types and features of matched angular contact ball bearings are shown

in Table 2.

DOUBLE-ROW ANGULAR CONTACT BALL BEARINGSThis is basically a back-to-back mounting of two single-row angular

contact ball bearings, but their inner and outer rings are each integrated intoone. Axial loads in both directions can be sustained, and the capacity tosustain moments is good. This type is used as fixed-end bearings.

Their cages are pressed steel.

FOUR-POINT CONTACT BALL BEARINGSThe inner ring is split radially into two pieces. Their design allows one

bearing to sustain significant axial loads in either direction.The contact angle is 35°, so the axial load capacity is high. This type is

suitable for carrying pure axial loads or combined loads where the axial loadsare high.

The cages are made of machined brass.

PRECAUTIONS FOR USE OF ANGULAR CONTACT BALLBEARINGS

Under severe operating conditions where the speed and temperature areclose to their limits, lubrication is marginal, vibration and moment loads areheavy, they may not be suitable, particularly for certain types of cages. Insuch a case, please consult with NSK beforehand.

And if the load on angular contact ball bearings becomes too small, or ifthe ratio of the axial and radial loads for matched bearings exceeds ‘e’ (e islisted in the bearings tables) during operation, slippage occurs between theballs and raceways, which may result in smearing. Especially with largebearings since the weight of the balls and cage is high. If such loadconditions are expected, please consult with NSK for selection of thebearings.

TOLERANCES AND RUNNING ACCURACY

SINGLE-ROW ANGULAR CONTACT BALL BEARINGS ·············································Table 8.2 (Pages A60 to A63)MATCHED ANGULAR CONTACT BALL BEARINGS ·············································Table 8.2 (Pages A60 to A63)DOUBLE-ROW ANGULAR CONTACT BALL BEARINGS ·············································Table 8.2 (Pages A60 to A63)FOUR-POINT CONTACT BALL BEARINGS·······················································Table 8.2 (Pages A60 to A63)

RECOMMENDED FITS

SINGLE-ROW ANGULAR CONTACT BALL BEARINGS·······················································Table 9.2 (Page A84)

Table 9.4 (Page A85)

MATCHED ANGULAR CONTACT BALL BEARINGS·······················································Table 9.2 (Page A84)


DOUBLE-ROW ANGULAR CONTACT BALL BEARINGS·······················································Table 9.2 (Page A84)


FOUR-POINT CONTACT BALL BEARINGS ·····Table 9.2 (Page A84)Table 9.4 (Page A85)

INTERNAL CLEARANCES

MATCHED ANGULAR CONTACT BALL BEARINGS ······Table 9. 17 (Page A94)

Matched angular contact ball bearings with precision better than P5 areprimarily used in the main spindles of machine tools, so they are used with apreload for rigidity. For convenience of selection, internal clearances areadjusted to produce Very Light, Light, Medium, and Heavy Preloads. Theirfitting is also special. Concerning these matters, please refer to Tables 10.1and 10.2 (Pages A98 and A99).

The clearance (or preload) of matched bearings is obtained by axiallytightening a pair of bearings till the side faces of their inner or outer rings arepressed against each other.

DOUBLE-ROW ANGULAR CONTACT BALL BEARINGSFor the clearance in double-row angular contact ball bearings, please

consult with NSK.

FOUR-POINT CONTACT BALL BEARINGS ·····Table 9.18 (Page A94)

LIMITING SPEEDSIn cases of single-row and matched angular contact ball bearings, the

Limiting speeds listed in the bearing table are for bearings with machinedcage. For those with pressed cages, the listed speeds must be reduced by20%.

The limiting speeds of bearings with contact angles of 15° (Symbol C) and25° (Symbol A5) are for bearings with precision of P5 and better (withmachined synthetic-resin cages or molded polyamide cages).

The limiting speeds listed in the bearing tables should be adjusteddepending on the bearing load conditions. Also, higher speeds are attainableby making changes in the lubrication method, cage design, etc. Refer to PageA37 for detailed information.

0

0

a

a

Back-to-back(DB)

(Example)7208 A DB

Radial loads and axial loads in both directionscan be sustained.

Since the distance between the effective loadcenters a0 is big, this type is suitable ifmoments are applied.

Face-to-face(DF)

(Example)7208 B DF

Radial loads and axial loads in both directionscan be sustained.

Compared with the DB Type, the distancebetween the effective load centers is small, sothe capacity to sustain moments is inferior tothe DB Type.

Tandem(DT)

(Example)7208 A DT

Radial loads and axial loads in one directioncan be sustained. Since two bearings share theaxial load, this arrangement is used when theload in one direction is heavy.

B 50

ANGULAR CONTACT BALL BEARINGSSINGLE/MATCHED MOUNTINGSBore Diameter 10 – 17 mm

B 51

7900 A5 DB DF DT 4 700 2 900 475 296 32 000 43 000 13.5 1.5 — 20.8 0.157900 C DB DF DT 4 900 3 050 500 310 38 000 53 000 10.3 1.7 — 20.8 0.157000 A DB DF DT 8 750 5 200 890 530 24 000 34 000 18.4 2.4 11.2 24.8 0.157000 C DB DF DT 8 650 5 000 880 510 36 000 50 000 12.8 3.2 — 24.8 0.157200 A DB DF DT 8 800 5 400 900 555 22 000 30 000 20.5 2.5 12.5 27.5 0.37200 B DB DF DT 8 100 5 000 825 510 16 000 22 000 25.8 7.8 12.5 27.5 0.37200 C DB DF DT 8 800 5 200 895 530 32 000 45 000 14.4 3.6 — 27.5 0.37300 A DB DF DT 15 100 8 600 1 540 880 16 000 22 000 24.0 2.0 12.5 32.5 0.37300 B DB DF DT 14 200 8 100 1 450 825 14 000 20 000 29.9 7.9 12.5 32.5 0.37901 A5 DB DF DT 5 200 3 550 530 360 30 000 43 000 14.4 2.4 — 22.8 0.157901 C DB DF DT 5 450 3 700 555 380 36 000 50 000 10.8 1.2 — 22.8 0.157001 A DB DF DT 9 400 5 950 955 610 22 000 30 000 19.5 3.5 13.2 26.8 0.157001 C DB DF DT 9 400 5 800 960 590 32 000 45 000 13.4 2.6 — 26.8 0.157201 A DB DF DT 13 000 8 050 1 330 820 20 000 28 000 22.7 2.7 14.5 29.5 0.37201 B DB DF DT 12 100 7 500 1 230 765 15 000 20 000 28.5 8.5 14.5 29.5 0.37201 C DB DF DT 12 800 7 700 1 310 785 30 000 40 000 15.9 4.1 — 29.5 0.37301 A DB DF DT 15 400 9 000 1 570 915 15 000 20 000 26.1 2.1 17 32 0.67301 B DB DF DT 14 400 8 400 1 460 855 13 000 18 000 32.6 8.6 17 32 0.67902 A5 DB DF DT 7 400 5 050 755 515 26 000 34 000 17.0 3.0 — 26.8 0.157902 C DB DF DT 7 750 5 300 790 540 30 000 43 000 12.8 1.2 — 26.8 0.157002 A DB DF DT 9 950 6 850 1 010 700 19 000 26 000 22.6 4.6 16.2 30.8 0.157002 C DB DF DT 10 100 6 750 1 030 690 28 000 38 000 15.3 2.7 — 30.8 0.157202 A DB DF DT 14 000 9 300 1 430 950 18 000 24 000 25.4 3.4 17.5 32.5 0.37202 B DB DF DT 12 900 8 600 1 310 875 13 000 18 000 32.0 10.0 17.5 32.5 0.37202 C DB DF DT 14 100 9 050 1 440 925 26 000 36 000 17.7 4.3 — 32.5 0.37302 A DB DF DT 21 800 14 200 2 220 1 440 13 000 17 000 29.5 3.5 20 37 0.67302 B DB DF DT 20 200 13 200 2 060 1 340 11 000 15 000 36.9 10.9 20 37 0.67903 A5 DB DF DT 7 750 5 600 790 570 24 000 32 000 18.0 4.0 — 28.8 0.157903 C DB DF DT 8 150 5 850 830 600 28 000 38 000 13.3 0.7 — 28.8 0.157003 A DB DF DT 10 400 7 650 1 060 780 17 000 24 000 25.0 5.0 18.2 33.8 0.157003 C DB DF DT 10 700 7 600 1 100 775 26 000 34 000 17.0 3.0 — 33.8 0.157203 A DB DF DT 17 600 12 000 1 790 1 220 16 000 22 000 28.5 4.5 19.5 37.5 0.37203 B DB DF DT 16 100 11 000 1 650 1 130 11 000 15 000 35.9 11.9 19.5 37.5 0.37203 C DB DF DT 17 600 11 700 1 800 1 190 22 000 32 000 19.6 4.4 — 37.5 0.37303 A DB DF DT 25 900 17 300 2 640 1 760 11 000 15 000 32.5 4.5 22 42 0.67303 B DB DF DT 24 000 16 000 2 450 1 640 10 000 14 000 40.9 12.9 22 42 0.6

Bearing Numbers (2)

Single Duplex

Abutment and FilletDimensions (mm)

da Da ramin max max


db (3) Db rb (3)min max max

10 22 6 0.3 0.15 2 880 1 450 294 148 — 40 000 56 000 6.7 12.5 19.5 0.3 0.00922 6 0.3 0.15 3 000 1 520 305 155 14.1 48 000 63 000 5.1 12.5 19.5 0.3 0.00926 8 0.3 0.15 5 350 2 600 550 266 — 32 000 43 000 9.2 12.5 23.5 0.3 0.01926 8 0.3 0.15 5 300 2 490 540 254 12.6 45 000 63 000 6.4 12.5 23.5 0.3 0.02130 9 0.6 0.3 5 400 2 710 555 276 — 28 000 38 000 10.3 15 25 0.6 0.03230 9 0.6 0.3 5 000 2 500 510 255 — 20 000 28 000 12.9 15 25 0.6 0.03230 9 0.6 0.3 5 400 2 610 550 266 13.2 40 000 56 000 7.2 15 25 0.6 0.03635 11 0.6 0.3 9 300 4 300 950 440 — 20 000 26 000 12.0 15 30 0.6 0.05335 11 0.6 0.3 8 750 4 050 890 410 — 18 000 24 000 14.9 15 30 0.6 0.054

12 24 6 0.3 0.15 3 200 1 770 325 181 — 38 000 53 000 7.2 14.5 21.5 0.3 0.01124 6 0.3 0.15 3 350 1 860 340 189 14.7 45 000 63 000 5.4 14.5 21.5 0.3 0.01128 8 0.3 0.15 5 800 2 980 590 305 — 28 000 38 000 9.8 14.5 25.5 0.3 0.02128 8 0.3 0.15 5 800 2 900 590 296 13.2 40 000 56 000 6.7 14.5 25.5 0.3 0.02432 10 0.6 0.3 8 000 4 050 815 410 — 26 000 34 000 11.4 17 27 0.6 0.03732 10 0.6 0.3 7 450 3 750 760 380 — 18 000 26 000 14.2 17 27 0.6 0.03832 10 0.6 0.3 7 900 3 850 805 395 12.5 36 000 50 000 7.9 17 27 0.6 0.04137 12 1 0.6 9 450 4 500 965 460 — 18 000 24 000 13.1 18 31 1 0.06037 12 1 0.6 8 850 4 200 900 425 — 16 000 22 000 16.3 18 31 1 0.062

15 28 7 0.3 0.15 4 550 2 530 465 258 — 32 000 43 000 8.5 17.5 25.5 0.3 0.01528 7 0.3 0.15 4 750 2 640 485 270 14.5 38 000 53 000 6.4 17.5 25.5 0.3 0.01532 9 0.3 0.15 6 100 3 450 625 350 — 24 000 32 000 11.3 17.5 29.5 0.3 0.03032 9 0.3 0.15 6 250 3 400 635 345 14.1 34 000 48 000 7.6 17.5 29.5 0.3 0.03435 11 0.6 0.3 8 650 4 650 880 475 — 22 000 30 000 12.7 20 30 0.6 0.04535 11 0.6 0.3 7 950 4 300 810 440 — 16 000 22 000 16.0 20 30 0.6 0.04635 11 0.6 0.3 8 650 4 550 885 460 13.2 32 000 45 000 8.8 20 30 0.6 0.05242 13 1 0.6 13 400 7 100 1 370 720 — 16 000 22 000 14.7 21 36 1 0.08442 13 1 0.6 12 500 6 600 1 270 670 — 14 000 19 000 18.5 21 36 1 0.086

17 30 7 0.3 0.15 4 750 2 800 485 286 — 30 000 40 000 9.0 19.5 27.5 0.3 0.01730 7 0.3 0.15 5 000 2 940 510 299 14.8 34 000 48 000 6.6 19.5 27.5 0.3 0.01735 10 0.3 0.15 6 400 3 800 655 390 — 22 000 30 000 12.5 19.5 32.5 0.3 0.04035 10 0.3 0.15 6 600 3 800 675 390 14.5 32 000 43 000 8.5 19.5 32.5 0.3 0.04440 12 0.6 0.3 10 800 6 000 1 100 610 — 20 000 28 000 14.2 22 35 0.6 0.06740 12 0.6 0.3 9 950 5 500 1 010 565 — 14 000 19 000 18.0 22 35 0.6 0.06840 12 0.6 0.3 10 900 5 850 1 110 595 13.3 28 000 38 000 9.8 22 35 0.6 0.07547 14 1 0.6 15 900 8 650 1 630 880 — 14 000 19 000 16.2 23 41 1 0.11647 14 1 0.6 14 800 8 000 1 510 820 — 13 000 17 000 20.4 23 41 1 0.118

Boundary Dimensions(mm)

d D B r r1min min

Limiting Speeds (1)

(min–1)Grease Oil

Limiting Speeds (1) (Matched)

(min–1)Grease Oil

Load Center Spacings (mm)

a0DB DF

Basic Load Ratings (Single) (N) {kgf}

Cr C0r Cr C0r

Basic Load Ratings (Matched) (N) {kgf}

Cr C0r Cr C0r

Notes (1) For applications operating near the limiting speed, refer to Page B49.(2) The suffixes A, A5, B, and C represent contact angles of 30°, 25°, 40°, and 15° respectively.

Note (3) For bearings marked — in the column for db, db and rb for shafts are da (min) and ra (max) respectively.

r

r

r

jD jd

2B 2BB

a0 a0

1

r1

a

jD jd

ra

aa

2Bra

jD

ra

b jd a

rb

jD

rb

a jd b

ra

Back-to-BackDB

Face-to-FaceDF

TandemDT

Single

Factor

f0

Mass(kg)

approx

Eff.LoadCenters(mm)a

ContactSingle, DT DB or DF

Anglee Fa/Fr≤e Fa/Fr>e Fa/Fr≤e Fa/Fr>e

X Y X Y X Y X Y0.178 0.38 1 0 0.44 1.47 1 1.65 0.72 2.390.357 0.40 1 0 0.44 1.40 1 1.57 0.72 2.280.714 0.43 1 0 0.44 1.30 1 1.46 0.72 2.11

15º 1.07 0.46 1 0 0.44 1.23 1 1.38 0.72 2.001.43 0.47 1 0 0.44 1.19 1 1.34 0.72 1.932.14 0.50 1 0 0.44 1.12 1 1.26 0.72 1.823.57 0.55 1 0 0.44 1.02 1 1.14 0.72 1.665.35 0.56 1 0 0.44 1.00 1 1.12 0.72 1.63

25º — 0.68 1 0 0.41 0.87 1 0.92 0.67 1.4130º — 0.80 1 0 0.39 0.76 1 0.78 0.63 1.2440º — 1.14 1 0 0.35 0.57 1 0.55 0.57 0.93

Dynamic Equivalent Load P =XFr +YFa

Static Equivalent Load P0=X 0Fr +Y 0Fa

*For i , use 2 for DB, DF and 1 for DT

i f0 Fa*Cor

Contact Single, DT DB or DFAngle X0 Y0 X0 Y0

15º 0.5 0.46 1 0.9225º 0.5 0.38 1 0.7630º 0.5 0.33 1 0.6640º 0.5 0.26 1 0.52

Single or DTmountingWhenFr>0.5Fr+Y0Fause P0=Fr

B 52


B 53

7904 A5 DB DF DT 10 700 8 100 1 090 825 19 000 26 000 22.3 4.3 — 35.8 0.157904 C DB DF DT 11 300 8 500 1 150 865 22 000 32 000 16.6 1.4 — 35.8 0.157004 A DB DF DT 17 600 13 200 1 800 1 340 15 000 20 000 29.9 5.9 22.5 39.5 0.37004 C DB DF DT 18 000 13 100 1 840 1 330 20 000 30 000 20.3 3.7 — 39.5 0.37204 A DB DF DT 23 500 16 600 2 400 1 690 13 000 19 000 33.3 5.3 25 42 0.67204 B DB DF DT 21 600 15 300 2 210 1 560 9 500 13 000 42.1 14.1 25 42 0.67204 C DB DF DT 23 600 16 100 2 410 1 650 19 000 26 000 23.0 5.0 — 42 0.67304 A DB DF DT 30 500 20 800 3 100 2 130 10 000 13 000 35.8 5.8 25 47 0.67304 B DB DF DT 28 200 19 300 2 870 1 970 9 000 12 000 45.2 15.2 25 47 0.67905 A5 DB DF DT 12 100 10 300 1 230 1 050 16 000 22 000 24.6 6.6 — 40.8 0.157905 C DB DF DT 12 700 10 800 1 300 1 110 19 000 26 000 18.0 0.0 — 40.8 0.157005 A DB DF DT 18 300 14 800 1 870 1 510 13 000 17 000 32.8 8.8 27.5 44.5 0.37005 C DB DF DT 19 000 14 800 1 940 1 510 18 000 26 000 21.6 2.4 — 44.5 0.37205 A DB DF DT 26 300 20 500 2 690 2 090 12 000 16 000 37.2 7.2 30 47 0.67205 B DB DF DT 24 000 18 800 2 450 1 920 8 500 11 000 47.3 17.3 30 47 0.67205 C DB DF DT 27 000 20 400 2 750 2 080 17 000 24 000 25.3 4.7 — 47 0.67305 A DB DF DT 43 000 31 500 4 400 3 250 8 500 11 000 42.1 8.1 30 57 0.67305 B DB DF DT 39 500 29 300 4 050 2 980 7 500 10 000 53.5 19.5 30 57 0.67906 A5 DB DF DT 12 800 11 900 1 300 1 210 14 000 19 000 27.0 9.0 — 45.8 0.157906 C DB DF DT 13 500 12 500 1 380 1 280 17 000 24 000 19.3 1.3 — 45.8 0.157006 A DB DF DT 23 600 20 200 2 410 2 060 11 000 15 000 37.5 11.5 35 50 0.67006 C DB DF DT 24 600 20 500 2 510 2 090 15 000 22 000 24.4 1.6 — 50 0.67206 A DB DF DT 36 500 29 500 3 750 3 000 10 000 13 000 42.6 10.6 35 57 0.67206 B DB DF DT 33 500 27 000 3 400 2 760 7 100 9 500 54.6 22.6 35 57 0.67206 C DB DF DT 37 500 29 300 3 800 2 990 14 000 20 000 28.3 3.7 — 57 0.67306 A DB DF DT 54 500 41 500 5 600 4 250 7 100 9 500 48.4 10.4 35 67 0.67306 B DB DF DT 50 500 38 500 5 150 3 950 6 300 8 500 61.8 23.8 35 67 0.67907 A5 DB DF DT 18 600 17 400 1 890 1 770 12 000 17 000 31.0 11.0 — 52.5 0.37907 C DB DF DT 19 600 18 300 2 000 1 860 14 000 20 000 22.1 2.1 — 52.5 0.37007 A DB DF DT 29 700 26 800 3 050 2 740 9 500 13 000 42.0 14.0 40 57 0.67007 C DB DF DT 31 000 27 300 3 150 2 790 13 000 19 000 27.0 1.0 — 57 0.67207 A DB DF DT 48 500 40 000 4 900 4 100 8 500 12 000 47.9 13.9 40 67 0.67207 B DB DF DT 44 000 36 500 4 500 3 750 6 000 8 000 61.9 27.9 40 67 0.67207 C DB DF DT 49 500 40 000 5 050 4 050 12 000 17 000 31.3 2.7 — 67 0.67307 A DB DF DT 65 000 52 500 6 600 5 350 6 300 8 500 54.2 12.2 41 74 17307 B DB DF DT 59 500 48 500 6 100 4 950 5 600 7 500 69.2 27.2 41 74 1

Bearing Numbers (2)

Single Duplex


da Da ramin max max



20 37 9 0.3 0.15 6 600 4 050 675 410 — 24 000 32 000 11.1 22.5 34.5 0.3 0.03637 9 0.3 0.15 6 950 4 250 710 430 14.9 28 000 38 000 8.3 22.5 34.5 0.3 0.03642 12 0.6 0.3 10 800 6 600 1 110 670 — 18 000 24 000 14.9 25 37 0.6 0.06842 12 0.6 0.3 11 100 6 550 1 130 665 14.0 26 000 36 000 10.1 25 37 0.6 0.07647 14 1 0.6 14 500 8 300 1 480 845 — 17 000 22 000 16.7 26 41 1 0.10647 14 1 0.6 13 300 7 650 1 360 780 — 12 000 16 000 21.1 26 41 1 0.10947 14 1 0.6 14 600 8 050 1 480 825 13.3 24 000 34 000 11.5 26 41 1 0.11852 15 1.1 0.6 18 700 10 400 1 910 1 060 — 13 000 17 000 17.9 27 45 1 0.14652 15 1.1 0.6 17 300 9 650 1 770 985 — 11 000 15 000 22.6 27 45 1 0.15

25 42 9 0.3 0.15 7 450 5 150 760 525 — 20 000 28 000 12.3 27.5 39.5 0.3 0.04342 9 0.3 0.15 7 850 5 400 800 555 15.5 24 000 34 000 9.0 27.5 39.5 0.3 0.04247 12 0.6 0.3 11 300 7 400 1 150 750 — 16 000 22 000 16.4 30 42 0.6 0.07947 12 0.6 0.3 11 700 7 400 1 190 755 14.7 22 000 30 000 10.8 30 42 0.6 0.08952 15 1 0.6 16 200 10 300 1 650 1 050 — 15 000 20 000 18.6 31 46 1 0.1352 15 1 0.6 14 800 9 400 1 510 960 — 10 000 14 000 23.7 31 46 1 0.13352 15 1 0.6 16 600 10 200 1 690 1 040 14.0 22 000 28 000 12.7 31 46 1 0.14362 17 1.1 0.6 26 400 15 800 2 690 1 610 — 10 000 14 000 21.1 32 55 1 0.23562 17 1.1 0.6 24 400 14 600 2 490 1 490 — 9 000 13 000 26.7 32 55 1 0.241

30 47 9 0.3 0.15 7 850 5 950 800 605 — 18 000 24 000 13.5 32.5 44.5 0.3 0.04947 9 0.3 0.15 8 300 6 250 845 640 15.9 22 000 28 000 9.7 32.5 44.5 0.3 0.04955 13 1 0.6 14 500 10 100 1 480 1 030 — 13 000 18 000 18.8 36 49 1 0.11655 13 1 0.6 15 100 10 300 1 540 1 050 14.9 19 000 26 000 12.2 36 49 1 0.13462 16 1 0.6 22 500 14 800 2 300 1 510 — 12 000 17 000 21.3 36 56 1 0.19762 16 1 0.6 20 500 13 500 2 090 1 380 — 8 500 12 000 27.3 36 56 1 0.20262 16 1 0.6 23 000 14 700 2 350 1 500 13.9 18 000 24 000 14.2 36 56 1 0.22272 19 1.1 0.6 33 500 20 900 3 450 2 130 — 9 000 12 000 24.2 37 65 1 0.34672 19 1.1 0.6 31 000 19 300 3 150 1 960 — 8 000 11 000 30.9 37 65 1 0.354

35 55 10 0.6 0.3 11 400 8 700 1 170 885 — 15 000 20 000 15.5 40 50 0.6 0.07455 10 0.6 0.3 12 100 9 150 1 230 930 15.7 18 000 24 000 11.0 40 50 0.6 0.07462 14 1 0.6 18 300 13 400 1 870 1 370 — 12 000 16 000 21.0 41 56 1 0.15362 14 1 0.6 19 100 13 700 1 950 1 390 15.0 17 000 22 000 13.5 41 56 1 0.17372 17 1.1 0.6 29 700 20 100 3 050 2 050 — 10 000 14 000 23.9 42 65 1 0.28772 17 1.1 0.6 27 100 18 400 2 760 1 870 — 7 500 10 000 30.9 42 65 1 0.29472 17 1.1 0.6 30 500 19 900 3 100 2 030 13.9 15 000 20 000 15.7 42 65 1 0.3280 21 1.5 1 40 000 26 300 4 050 2 680 — 8 000 10 000 27.1 44 71 1.5 0.46480 21 1.5 1 36 500 24 200 3 750 2 460 — 7 100 9 500 34.6 44 71 1.5 0.474


d D B r r1min min

Limiting Speeds (1)

(min–1)Grease Oil


(min–1)Grease Oil


a0DB DF


Cr C0r Cr C0r


Cr C0r Cr C0r



r

r

r

jD jd

2B 2BB

a0 a0

1

r1

a

jD jd

ra

aa

2Bra

jD

ra

b jd a

rb

jD

rb

a jd b

ra

Back-to-BackDB

Face-to-FaceDF

TandemDT

Single

Factor

f0

Mass(kg)

approx




X Y X Y X Y X Y0.178 0.38 1 0 0.44 1.47 1 1.65 0.72 2.390.357 0.40 1 0 0.44 1.40 1 1.57 0.72 2.280.714 0.43 1 0 0.44 1.30 1 1.46 0.72 2.11

15º 1.07 0.46 1 0 0.44 1.23 1 1.38 0.72 2.001.43 0.47 1 0 0.44 1.19 1 1.34 0.72 1.932.14 0.50 1 0 0.44 1.12 1 1.26 0.72 1.823.57 0.55 1 0 0.44 1.02 1 1.14 0.72 1.665.35 0.56 1 0 0.44 1.00 1 1.12 0.72 1.63

25º — 0.68 1 0 0.41 0.87 1 0.92 0.67 1.4130º — 0.80 1 0 0.39 0.76 1 0.78 0.63 1.2440º — 1.14 1 0 0.35 0.57 1 0.55 0.57 0.93




i f0 Fa*Cor


15º 0.5 0.46 1 0.9225º 0.5 0.38 1 0.7630º 0.5 0.33 1 0.6640º 0.5 0.26 1 0.52


B 54


B 55

7908 A5 DB DF DT 23 300 22 300 2 370 2 270 11 000 15 000 35.8 11.8 — 59.5 0.37908 C DB DF DT 24 600 23 500 2 510 2 390 13 000 18 000 25.7 1.7 — 59.5 0.37008 A DB DF DT 31 500 31 000 3 250 3 150 8 500 11 000 46.2 16.2 45 63 0.67008 C DB DF DT 33 500 32 000 3 400 3 250 12 000 17 000 29.5 0.5 — 63 0.67208 A DB DF DT 57 500 50 500 5 850 5 150 7 500 10 000 52.6 16.6 45 75 0.67208 B DB DF DT 52 000 46 000 5 300 4 700 5 300 7 500 68.3 32.3 45 75 0.67208 C DB DF DT 59 000 50 500 6 000 5 150 11 000 15 000 34.1 1.9 — 75 0.67308 A DB DF DT 79 500 66 000 8 100 6 700 5 600 7 500 60.5 14.5 46 84 17308 B DB DF DT 73 000 60 500 7 400 6 200 5 000 6 700 77.5 31.5 46 84 17909 A5 DB DF DT 24 600 25 400 2 510 2 590 9 500 13 000 38.4 14.4 — 65.5 0.37909 C DB DF DT 26 000 26 800 2 660 2 730 12 000 16 000 27.1 3.1 — 65.5 0.37009 A DB DF DT 37 500 37 500 3 850 3 800 7 500 10 000 50.6 18.6 50 70 0.67009 C DB DF DT 39 500 38 500 4 050 3 950 11 000 15 000 32.1 0.1 — 70 0.67209 A DB DF DT 64 500 57 500 6 550 5 850 7 100 9 500 56.5 18.5 50 80 0.67209 B DB DF DT 58 500 52 500 5 950 5 350 5 000 6 700 73.5 35.5 50 80 0.67209 C DB DF DT 66 500 57 500 6 750 5 850 10 000 14 000 36.4 1.6 — 80 0.67309 A DB DF DT 103 000 87 000 10 500 8 900 5 000 6 700 66.9 16.9 51 94 17309 B DB DF DT 95 000 80 500 9 650 8 200 4 500 6 000 85.8 35.8 51 94 17910 A5 DB DF DT 25 900 28 400 2 640 2 900 9 000 12 000 40.5 16.5 — 69.5 0.37910 C DB DF DT 27 400 30 000 2 800 3 050 11 000 15 000 28.3 4.3 — 69.5 0.37010 A DB DF DT 40 000 42 000 4 050 4 300 7 100 9 500 53.5 21.5 55 75 0.67010 C DB DF DT 42 000 44 000 4 300 4 450 10 000 14 000 33.4 1.4 — 75 0.67210 A DB DF DT 67 000 63 000 6 850 6 400 6 300 9 000 60.4 20.4 55 85 0.67210 B DB DF DT 60 500 57 000 6 200 5 850 4 500 6 300 78.7 38.7 55 85 0.67210 C DB DF DT 69 500 63 500 7 100 6 450 9 500 13 000 38.7 1.3 — 85 0.67310 A DB DF DT 121 000 104 000 12 300 10 600 4 500 6 000 73.2 19.2 56 104 17310 B DB DF DT 111 000 96 000 11 300 9 800 4 000 5 600 94.1 40.1 56 104 17911 A5 DB DF DT 29 300 33 500 2 990 3 400 8 000 11 000 44.5 18.5 — 75 0.67911 C DB DF DT 31 000 35 500 3 150 3 600 9 500 13 000 31.1 5.1 — 75 0.67011 A DB DF DT 52 500 55 500 5 350 5 650 6 300 8 500 59.9 23.9 60 85 0.67011 C DB DF DT 55 500 57 500 5 650 5 850 9 000 12 000 37.4 1.4 — 85 0.67211 A DB DF DT 83 000 79 000 8 450 8 050 6 000 8 000 65.7 23.7 61 94 17211 B DB DF DT 75 000 72 000 7 650 7 350 4 000 5 600 86.0 44.0 61 94 17211 C DB DF DT 86 000 80 000 8 800 8 150 8 500 12 000 41.7 0.3 — 94 17311 A DB DF DT 139 000 123 000 14 200 12 500 4 000 5 600 79.5 21.5 61 114 17311 B DB DF DT 128 000 113 000 13 100 11 500 3 600 5 000 102.4 44.4 61 114 1

Bearing Numbers (2)

Single Duplex


da Da ramin max max



40 62 12 0.6 0.3 14 300 11 200 1 460 1 140 — 14 000 18 000 17.9 45 57 0.6 0.1162 12 0.6 0.3 15 100 11 700 1 540 1 200 15.7 16 000 22 000 12.8 45 57 0.6 0.10968 15 1 0.6 19 500 15 400 1 990 1 570 — 10 000 14 000 23.1 46 62 1 0.1968 15 1 0.6 20 600 15 900 2 100 1 620 15.4 15 000 20 000 14.7 46 62 1 0.21380 18 1.1 0.6 35 500 25 100 3 600 2 560 — 9 500 13 000 26.3 47 73 1 0.37580 18 1.1 0.6 32 000 23 000 3 250 2 340 — 6 700 9 000 34.2 47 73 1 0.38380 18 1.1 0.6 36 500 25 200 3 700 2 570 14.1 14 000 19 000 17.0 47 73 1 0.41890 23 1.5 1 49 000 33 000 5 000 3 350 — 7 100 9 000 30.3 49 81 1.5 0.63390 23 1.5 1 45 000 30 500 4 550 3 100 — 6 300 8 500 38.8 49 81 1.5 0.648

45 68 12 0.6 0.3 15 100 12 700 1 540 1 290 — 12 000 17 000 19.2 50 63 0.6 0.1368 12 0.6 0.3 16 000 13 400 1 630 1 360 16.0 14 000 20 000 13.6 50 63 0.6 0.12975 16 1 0.6 23 100 18 700 2 360 1 910 — 9 500 13 000 25.3 51 69 1 0.2575 16 1 0.6 24 400 19 300 2 490 1 960 15.4 14 000 19 000 16.0 51 69 1 0.27485 19 1.1 0.6 39 500 28 700 4 050 2 930 — 8 500 12 000 28.3 52 78 1 0.41185 19 1.1 0.6 36 000 26 200 3 650 2 680 — 6 300 8 500 36.8 52 78 1 0.42185 19 1.1 0.6 41 000 28 800 4 150 2 940 14.2 12 000 17 000 18.2 52 78 1 0.468

100 25 1.5 1 63 500 43 500 6 450 4 450 — 6 300 8 500 33.4 54 91 1.5 0.848100 25 1.5 1 58 500 40 000 5 950 4 100 — 5 600 7 500 42.9 54 91 1.5 0.869

50 72 12 0.6 0.3 15 900 14 200 1 630 1 450 — 11 000 15 000 20.2 55 67 0.6 0.13272 12 0.6 0.3 16 900 15 000 1 720 1 530 16.2 13 000 18 000 14.2 55 67 0.6 0.1380 16 1 0.6 24 500 21 100 2 500 2 150 — 8 500 12 000 26.8 56 74 1 0.26380 16 1 0.6 26 000 21 900 2 650 2 230 15.7 12 000 17 000 16.7 56 74 1 0.29390 20 1.1 0.6 41 500 31 500 4 200 3 200 — 8 000 11 000 30.2 57 83 1 0.46690 20 1.1 0.6 37 500 28 600 3 800 2 920 — 5 600 8 000 39.4 57 83 1 0.47790 20 1.1 0.6 43 000 31 500 4 350 3 250 14.5 12 000 16 000 19.4 57 83 1 0.528

110 27 2 1 74 000 52 000 7 550 5 300 — 5 600 7 500 36.6 60 100 2 1.1110 27 2 1 68 000 48 000 6 950 4 900 — 5 000 6 700 47.1 60 100 2 1.12

55 80 13 1 0.6 18 100 16 800 1 840 1 710 — 10 000 14 000 22.2 61 74 1 0.18480 13 1 0.6 19 100 17 700 1 950 1 810 16.3 12 000 16 000 15.5 61 74 1 0.18290 18 1.1 0.6 32 500 27 700 3 300 2 830 — 7 500 11 000 29.9 62 83 1 0.39190 18 1.1 0.6 34 000 28 600 3 500 2 920 15.5 11 000 15 000 18.7 62 83 1 0.43

100 21 1.5 1 51 000 39 500 5 200 4 050 — 7 100 10 000 32.9 64 91 1.5 0.613100 21 1.5 1 46 500 36 000 4 700 3 700 — 5 300 7 100 43.0 64 91 1.5 0.627100 21 1.5 1 53 000 40 000 5 400 4 100 14.5 10 000 14 000 20.9 64 91 1.5 0.688120 29 2 1 86 000 61 500 8 750 6 250 — 5 000 6 700 39.8 65 110 2 1.41120 29 2 1 79 000 56 500 8 050 5 750 — 4 500 6 300 51.2 65 110 2 1.45


d D B r r1min min

Limiting Speeds (1)

(min–1)Grease Oil


(min–1)Grease Oil


a0DB DF


Cr C0r Cr C0r


Cr C0r Cr C0r



r

r

r

jD jd

2B 2BB

a0 a0

1

r1

a

jD jd

ra

aa

2Bra

jD

ra

b jd a

rb

jD

rb

a jd b

ra

Back-to-BackDB

Face-to-FaceDF

TandemDT

Single

Factor

f0

Mass(kg)

approx




X Y X Y X Y X Y0.178 0.38 1 0 0.44 1.47 1 1.65 0.72 2.390.357 0.40 1 0 0.44 1.40 1 1.57 0.72 2.280.714 0.43 1 0 0.44 1.30 1 1.46 0.72 2.11

15º 1.07 0.46 1 0 0.44 1.23 1 1.38 0.72 2.001.43 0.47 1 0 0.44 1.19 1 1.34 0.72 1.932.14 0.50 1 0 0.44 1.12 1 1.26 0.72 1.823.57 0.55 1 0 0.44 1.02 1 1.14 0.72 1.665.35 0.56 1 0 0.44 1.00 1 1.12 0.72 1.63

25º — 0.68 1 0 0.41 0.87 1 0.92 0.67 1.4130º — 0.80 1 0 0.39 0.76 1 0.78 0.63 1.2440º — 1.14 1 0 0.35 0.57 1 0.55 0.57 0.93




i f0 Fa*Cor


15º 0.5 0.46 1 0.9225º 0.5 0.38 1 0.7630º 0.5 0.33 1 0.6640º 0.5 0.26 1 0.52


B 56


B 57

7912 A5 DB DF DT 29 800 35 500 3 050 3 600 7 500 10 000 46.8 20.8 — 80 0.67912 C DB DF DT 31 500 37 500 3 200 3 800 9 000 12 000 32.4 6.4 — 80 0.67012 A DB DF DT 53 500 59 000 5 450 6 000 6 000 8 000 62.7 26.7 65 90 0.67012 C DB DF DT 57 000 61 500 5 800 6 250 8 500 12 000 38.8 2.8 — 90 0.67212 A DB DF DT 100 000 97 500 10 200 9 950 5 300 7 100 71.1 27.1 66 104 17212 B DB DF DT 91 000 89 000 9 300 9 050 3 800 5 300 93.3 49.3 66 104 17212 C DB DF DT 104 000 98 500 10 600 10 000 7 500 11 000 44.8 0.8 — 104 17312 A DB DF DT 159 000 143 000 16 200 14 500 3 800 5 000 85.9 23.9 67 123 17312 B DB DF DT 146 000 131 000 14 900 13 400 3 400 4 500 110.7 48.7 67 123 17913 A5 DB DF DT 31 000 39 000 3 150 3 950 7 100 9 500 49.1 23.1 — 85 0.67913 C DB DF DT 33 000 41 000 3 350 4 200 8 500 12 000 33.8 7.8 — 85 0.67013 A DB DF DT 56 500 65 500 5 750 6 700 5 600 7 500 65.6 29.6 70 95 0.67013 C DB DF DT 60 500 68 500 6 150 7 000 8 000 11 000 40.1 4.1 — 95 0.67213 A DB DF DT 114 000 116 000 11 600 11 800 4 800 6 700 76.4 30.4 71 114 17213 B DB DF DT 103 000 105 000 10 500 10 700 3 400 4 800 100.6 54.6 71 114 17213 C DB DF DT 119 000 117 000 12 100 12 000 7 100 9 500 47.8 1.8 — 114 17313 A DB DF DT 180 000 164 000 18 400 16 700 3 600 4 800 92.2 26.2 72 133 17313 B DB DF DT 166 000 151 000 16 900 15 400 3 200 4 300 119.0 53.0 72 133 17914 A5 DB DF DT 43 000 52 500 4 400 5 350 6 300 9 000 55.6 23.6 — 95 0.67914 C DB DF DT 45 500 55 500 4 650 5 650 7 500 11 000 38.8 6.8 — 95 0.67014 A DB DF DT 71 500 82 500 7 300 8 450 5 000 6 700 72.0 32.0 75 105 0.67014 C DB DF DT 76 000 86 000 7 750 8 750 7 100 10 000 44.1 4.1 — 105 0.67214 A DB DF DT 124 000 127 000 12 600 13 000 4 500 6 300 80.3 32.3 76 119 17214 B DB DF DT 112 000 116 000 11 500 11 800 3 200 4 500 105.8 57.8 76 119 17214 C DB DF DT 129 000 129 000 13 200 13 200 6 700 9 000 50.1 2.1 — 119 17314 A DB DF DT 203 000 187 000 20 700 19 100 3 200 4 300 98.5 28.5 77 143 17314 B DB DF DT 186 000 172 000 19 000 17 500 2 800 4 000 127.3 57.3 77 143 17915 A5 DB DF DT 44 000 55 500 4 450 5 650 6 000 8 500 58.0 26.0 — 100 0.67915 C DB DF DT 46 500 58 500 4 750 5 950 7 100 10 000 40.1 8.1 — 100 0.67015 A DB DF DT 73 000 87 500 7 450 8 900 4 800 6 700 74.8 34.8 80 110 0.67015 C DB DF DT 78 000 91 500 7 950 9 300 6 700 9 500 45.4 5.4 — 110 0.67215 A DB DF DT 123 000 129 000 12 600 13 100 4 300 6 000 84.2 34.2 81 124 17215 B DB DF DT 112 000 117 000 11 400 11 900 3 200 4 300 111.0 61.0 81 124 17215 C DB DF DT 134 000 140 000 13 700 14 200 6 300 9 000 52.4 2.4 — 124 17315 A DB DF DT 221 000 212 000 22 500 21 600 3 000 4 000 104.8 30.8 82 153 17315 B DB DF DT 202 000 195 000 20 600 19 800 2 800 3 800 135.6 61.6 82 153 1

Bearing Numbers (2)

Single Duplex


da Da ramin max max



60 85 13 1 0.6 18 300 17 700 1 870 1 810 — 9 500 13 000 23.4 66 79 1 0.19785 13 1 0.6 19 400 18 700 1 980 1 910 16.5 11 000 15 000 16.2 66 79 1 0.19495 18 1.1 0.6 33 000 29 500 3 350 3 000 — 7 100 10 000 31.4 67 88 1 0.41795 18 1.1 0.6 35 000 30 500 3 600 3 150 15.7 10 000 14 000 19.4 67 88 1 0.46

110 22 1.5 1 62 000 48 500 6 300 4 950 — 6 700 9 000 35.5 69 101 1.5 0.798110 22 1.5 1 56 000 44 500 5 700 4 550 — 4 800 6 300 46.7 69 101 1.5 0.815110 22 1.5 1 64 000 49 000 6 550 5 000 14.4 9 500 13 000 22.4 69 101 1.5 0.889130 31 2.1 1.1 98 000 71 500 10 000 7 250 — 4 800 6 300 42.9 72 118 2 1.74130 31 2.1 1.1 90 000 65 500 9 200 6 700 — 4 300 5 600 55.4 72 118 2 1.78

65 90 13 1 0.6 19 100 19 400 1 940 1 980 — 9 000 12 000 24.6 71 84 1 0.21190 13 1 0.6 20 200 20 500 2 060 2 090 16.7 10 000 14 000 16.9 71 84 1 0.208

100 18 1.1 0.6 35 000 33 000 3 550 3 350 — 6 700 9 500 32.8 72 93 1 0.455100 18 1.1 0.6 37 000 34 500 3 800 3 500 15.9 10 000 13 000 20.0 72 93 1 0.493120 23 1.5 1 70 500 58 000 7 150 5 900 — 6 000 8 500 38.2 74 111 1.5 1.03120 23 1.5 1 63 500 52 500 6 500 5 350 — 4 300 6 000 50.3 74 111 1.5 1.05120 23 1.5 1 73 000 58 500 7 450 6 000 14.6 9 000 12 000 23.9 74 111 1.5 1.14140 33 2.1 1.1 111 000 82 000 11 300 8 350 — 4 300 6 000 46.1 77 128 2 2.12140 33 2.1 1.1 102 000 75 500 10 400 7 700 — 3 800 5 300 59.5 77 128 2 2.17

70 100 16 1 0.6 26 500 26 300 2 710 2 680 — 8 000 11 000 27.8 76 94 1 0.341100 16 1 0.6 28 100 27 800 2 870 2 830 16.4 9 500 13 000 19.4 76 94 1 0.338110 20 1.1 0.6 44 000 41 500 4 500 4 200 — 6 300 8 500 36.0 77 103 1 0.625110 20 1.1 0.6 47 000 43 000 4 800 4 400 15.7 9 000 12 000 22.1 77 103 1 0.698125 24 1.5 1 76 500 63 500 7 800 6 500 — 5 600 8 000 40.1 79 116 1.5 1.11125 24 1.5 1 69 000 58 000 7 050 5 900 — 4 000 5 600 52.9 79 116 1.5 1.14125 24 1.5 1 79 500 64 500 8 100 6 600 14.6 8 500 11 000 25.1 79 116 1.5 1.24150 35 2.1 1.1 125 000 93 500 12 700 9 550 — 4 000 5 300 49.3 82 138 2 2.6150 35 2.1 1.1 114 000 86 000 11 700 8 750 — 3 600 5 000 63.6 82 138 2 2.65

75 105 16 1 0.6 26 900 27 700 2 750 2 820 — 7 500 10 000 29.0 81 99 1 0.355105 16 1 0.6 28 600 29 300 2 910 2 980 16.6 9 000 12 000 20.1 81 99 1 0.357115 20 1.1 0.6 45 000 43 500 4 600 4 450 — 6 000 8 000 37.4 82 108 1 0.661115 20 1.1 0.6 48 000 45 500 4 900 4 650 15.9 8 500 12 000 22.7 82 108 1 0.748130 25 1.5 1 76 000 64 500 7 750 6 550 — 5 600 7 500 42.1 84 121 1.5 1.19130 25 1.5 1 68 500 58 500 7 000 5 950 — 3 800 5 300 55.5 84 121 1.5 1.22130 25 1.5 1 83 000 70 000 8 450 7 100 14.8 8 000 11 000 26.2 84 121 1.5 1.36160 37 2.1 1.1 136 000 106 000 13 800 10 800 — 3 800 5 000 52.4 87 148 2 3.13160 37 2.1 1.1 125 000 97 500 12 700 9 900 — 3 400 4 800 67.8 87 148 2 3.19


d D B r r1min min

Limiting Speeds (1)

(min–1)Grease Oil


(min–1)Grease Oil


a0DB DF


Cr C0r Cr C0r


Cr C0r Cr C0r



r

r

r

jD jd

2B 2BB

a0 a0

1

r1

a

jD jd

ra

aa

2Bra

jD

ra

b jd a

rb

jD

rb

a jd b

ra

Back-to-BackDB

Face-to-FaceDF

TandemDT

Single

Factor

f0

Mass(kg)

approx




X Y X Y X Y X Y0.178 0.38 1 0 0.44 1.47 1 1.65 0.72 2.390.357 0.40 1 0 0.44 1.40 1 1.57 0.72 2.280.714 0.43 1 0 0.44 1.30 1 1.46 0.72 2.11

15º 1.07 0.46 1 0 0.44 1.23 1 1.38 0.72 2.001.43 0.47 1 0 0.44 1.19 1 1.34 0.72 1.932.14 0.50 1 0 0.44 1.12 1 1.26 0.72 1.823.57 0.55 1 0 0.44 1.02 1 1.14 0.72 1.665.35 0.56 1 0 0.44 1.00 1 1.12 0.72 1.63

25º — 0.68 1 0 0.41 0.87 1 0.92 0.67 1.4130º — 0.80 1 0 0.39 0.76 1 0.78 0.63 1.2440º — 1.14 1 0 0.35 0.57 1 0.55 0.57 0.93




i f0 Fa*Cor


15º 0.5 0.46 1 0.9225º 0.5 0.38 1 0.7630º 0.5 0.33 1 0.6640º 0.5 0.26 1 0.52


B 58


B 59

7916 A5 DB DF DT 44 500 58 000 4 550 5 900 5 600 8 000 60.3 28.3 — 105 0.67916 C DB DF DT 47 000 61 500 4 800 6 250 6 700 9 500 41.5 9.5 — 105 0.67016 A DB DF DT 89 500 106 000 9 150 10 800 4 300 6 000 81.2 37.2 85 120 0.67016 C DB DF DT 95 500 111 000 9 700 11 300 6 300 9 000 49.4 5.4 — 120 0.67216 A DB DF DT 145 000 152 000 14 700 15 600 4 000 5 600 89.5 37.5 86 134 17216 B DB DF DT 131 000 139 000 13 300 14 100 2 800 4 000 118.3 66.3 86 134 17216 C DB DF DT 151 000 155 000 15 400 15 800 6 000 8 000 55.5 3.5 — 134 17316 A DB DF DT 239 000 238 000 24 400 24 200 2 800 3 800 111.2 33.2 87 163 17316 B DB DF DT 219 000 218 000 22 400 22 300 2 600 3 400 143.9 65.9 87 163 17917 A5 DB DF DT 59 500 77 000 6 100 7 850 5 300 7 500 65.8 29.8 — 115 0.67917 C DB DF DT 63 000 81 500 6 450 8 300 6 300 9 000 45.5 9.5 — 115 0.67017 A DB DF DT 91 500 112 000 9 350 11 400 4 300 5 600 84.1 40.1 90 125 0.67017 C DB DF DT 98 000 117 000 9 950 12 000 6 000 8 500 50.8 6.8 — 125 0.67217 A DB DF DT 167 000 178 000 17 100 18 200 3 800 5 300 95.8 39.8 91 144 17217 B DB DF DT 151 000 162 000 15 400 16 500 2 800 3 800 126.6 70.6 91 144 17217 C DB DF DT 174 000 181 000 17 800 18 500 5 600 7 500 59.5 3.5 — 144 17317 A DB DF DT 258 000 265 000 26 300 27 000 2 600 3 600 117.5 35.5 92 173 17317 B DB DF DT 236 000 244 000 24 100 24 800 2 400 3 200 152.2 70.2 92 173 17918 A5 DB DF DT 64 000 87 000 6 500 8 900 5 000 7 100 68.1 32.1 — 120 0.67918 C DB DF DT 67 500 92 000 6 900 9 400 6 000 8 500 46.8 10.8 — 120 0.67018 A DB DF DT 109 000 133 000 11 200 13 500 3 800 5 300 90.4 42.4 96 134 17018 C DB DF DT 116 000 138 000 11 900 14 100 5 600 8 000 54.8 6.8 — 134 17218 A DB DF DT 191 000 206 000 19 500 21 000 3 600 5 000 102.2 42.2 96 154 17218 B DB DF DT 173 000 188 000 17 700 19 100 2 600 3 400 134.9 74.9 96 154 17218 C DB DF DT 199 000 209 000 20 300 21 400 5 300 7 100 63.5 3.5 — 154 17318 A DB DF DT 277 000 294 000 28 300 30 000 2 600 3 400 123.8 37.8 97 183 17318 B DB DF DT 254 000 270 000 25 900 27 600 2 200 3 000 160.5 74.5 97 183 17919 A5 DB DF DT 64 500 91 000 6 600 9 250 4 800 6 700 70.5 34.5 — 125 0.67919 C DB DF DT 68 500 96 000 7 000 9 800 5 600 8 000 48.1 12.1 — 125 0.67019 A DB DF DT 109 000 134 000 11 100 13 600 3 800 5 000 93.3 45.3 — 139 17019 C DB DF DT 119 000 146 000 12 200 14 900 5 300 7 500 56.1 8.1 — 139 17219 A DB DF DT 208 000 221 000 21 200 22 600 3 400 4 500 108.5 44.5 102 163 17219 B DB DF DT 188 000 202 000 19 200 20 500 2 400 3 200 143.2 79.2 102 163 17219 C DB DF DT 216 000 224 000 22 000 22 800 4 800 6 700 67.5 3.5 — 163 17319 A DB DF DT 297 000 325 000 30 500 33 000 2 400 3 200 130.2 40.2 102 193 17319 B DB DF DT 272 000 298 000 27 700 30 500 2 200 3 000 168.7 78.7 102 193 1

Bearing Numbers (2)

Single Duplex


da Da ramin max max



80 110 16 1 0.6 27 300 29 000 2 790 2 960 — 7 100 10 000 30.2 86 104 1 0.38110 16 1 0.6 29 000 30 500 2 960 3 150 16.7 8 500 12 000 20.7 86 104 1 0.376125 22 1.1 0.6 55 000 53 000 5 650 5 400 — 5 600 7 500 40.6 87 118 1 0.88125 22 1.1 0.6 58 500 55 500 6 000 5 650 15.7 8 000 11 000 24.7 87 118 1 0.966140 26 2 1 89 000 76 000 9 100 7 750 — 5 000 7 100 44.8 90 130 2 1.46140 26 2 1 80 500 69 500 8 200 7 050 — 3 600 5 000 59.1 90 130 2 1.49140 26 2 1 93 000 77 500 9 450 7 900 14.7 7 500 10 000 27.7 90 130 2 1.63170 39 2.1 1.1 147 000 119 000 15 000 12 100 — 3 600 4 800 55.6 92 158 2 3.71170 39 2.1 1.1 135 000 109 000 13 800 11 100 — 3 200 4 300 71.9 92 158 2 3.79

85 120 18 1.1 0.6 36 500 38 500 3 750 3 900 — 6 700 9 000 32.9 92 113 1 0.541120 18 1.1 0.6 39 000 40 500 3 950 4 150 16.5 8 000 11 000 22.7 92 113 1 0.534130 22 1.1 0.6 56 500 56 000 5 750 5 700 — 5 300 7 100 42.0 92 123 1 0.913130 22 1.1 0.6 60 000 58 500 6 150 6 000 15.9 7 500 10 000 25.4 92 123 1 1.01150 28 2 1 103 000 89 000 10 500 9 100 — 4 800 6 700 47.9 95 140 2 1.83150 28 2 1 93 000 81 000 9 500 8 250 — 3 400 4 800 63.3 95 140 2 1.87150 28 2 1 107 000 90 500 10 900 9 250 14.7 6 700 9 500 29.7 95 140 2 2.04180 41 3 1.1 159 000 133 000 16 200 13 500 — 3 400 4 500 58.8 99 166 2.5 4.33180 41 3 1.1 146 000 122 000 14 800 12 400 — 3 000 4 000 76.1 99 166 2.5 4.42

90 125 18 1.1 0.6 39 500 43 500 4 000 4 450 — 6 300 8 500 34.1 97 118 1 0.56125 18 1.1 0.6 41 500 46 000 4 250 4 700 16.6 7 500 10 000 23.4 97 118 1 0.563140 24 1.5 1 67 500 66 500 6 850 6 750 — 4 800 6 700 45.2 99 131 1.5 1.19140 24 1.5 1 71 500 69 000 7 300 7 050 15.7 7 100 9 500 27.4 99 131 1.5 1.34160 30 2 1 118 000 103 000 12 000 10 500 — 4 500 6 000 51.1 100 150 2 2.25160 30 2 1 107 000 94 000 10 900 9 550 — 3 200 4 300 67.4 100 150 2 2.29160 30 2 1 123 000 105 000 12 500 10 700 14.6 6 300 9 000 31.7 100 150 2 2.51190 43 3 1.1 171 000 147 000 17 400 15 000 — 3 200 4 300 61.9 104 176 2.5 5.06190 43 3 1.1 156 000 135 000 15 900 13 800 — 2 800 3 800 80.2 104 176 2.5 5.17

95 130 18 1.1 0.6 40 000 45 500 4 050 4 650 — 6 000 8 500 35.2 102 123 1 0.597130 18 1.1 0.6 42 500 48 000 4 300 4 900 16.7 7 100 10 000 24.1 102 123 1 0.591145 24 1.5 1 67 000 67 000 6 800 6 800 — 4 500 6 300 46.6 104 136 1.5 1.43145 24 1.5 1 73 500 73 000 7 500 7 450 15.9 6 700 9 000 28.1 104 136 1.5 1.42170 32 2.1 1.1 128 000 111 000 13 000 11 300 — 4 300 5 600 54.2 107 158 2 2.68170 32 2.1 1.1 116 000 101 000 11 800 10 300 — 3 000 4 000 71.6 107 158 2 2.74170 32 2.1 1.1 133 000 112 000 13 500 11 400 14.6 6 000 8 500 33.7 107 158 2 3.05200 45 3 1.1 183 000 162 000 18 600 16 600 — 3 000 4 000 65.1 109 186 2.5 5.83200 45 3 1.1 167 000 149 000 17 100 15 200 — 2 600 3 600 84.3 109 186 2.5 5.98


d D B r r1min min

Limiting Speeds (1)

(min–1)Grease Oil


(min–1)Grease Oil


a0DB DF


Cr C0r Cr C0r


Cr C0r Cr C0r



r

r

r

jD jd

2B 2BB

a0 a0

1

r1

a

jD jd

ra

aa

2Bra

jD

ra

b jd a

rb

jD

rb

a jd b

ra

Back-to-BackDB

Face-to-FaceDF

TandemDT

Single

Factor

f0

Mass(kg)

approx




X Y X Y X Y X Y0.178 0.38 1 0 0.44 1.47 1 1.65 0.72 2.390.357 0.40 1 0 0.44 1.40 1 1.57 0.72 2.280.714 0.43 1 0 0.44 1.30 1 1.46 0.72 2.11

15º 1.07 0.46 1 0 0.44 1.23 1 1.38 0.72 2.001.43 0.47 1 0 0.44 1.19 1 1.34 0.72 1.932.14 0.50 1 0 0.44 1.12 1 1.26 0.72 1.823.57 0.55 1 0 0.44 1.02 1 1.14 0.72 1.665.35 0.56 1 0 0.44 1.00 1 1.12 0.72 1.63

25º — 0.68 1 0 0.41 0.87 1 0.92 0.67 1.4130º — 0.80 1 0 0.39 0.76 1 0.78 0.63 1.2440º — 1.14 1 0 0.35 0.57 1 0.55 0.57 0.93




i f0 Fa*Cor


15º 0.5 0.46 1 0.9225º 0.5 0.38 1 0.7630º 0.5 0.33 1 0.6640º 0.5 0.26 1 0.52


B 60


B 61

7920 A5 DB DF DT 77 000 103 000 7 850 10 500 4 500 6 300 76.0 36.0 — 135 0.67920 C DB DF DT 81 500 108 000 8 300 11 100 5 300 7 500 52.2 12.2 — 135 0.67020 A DB DF DT 111 000 141 000 11 300 14 400 3 600 5 000 96.2 48.2 — 144 1

7020 C DB DF DT 122 000 154 000 12 500 15 800 5 300 7 100 57.5 9.5 — 144 17220 A DB DF DT 233 000 251 000 23 800 25 600 3 200 4 300 114.8 46.8 107 173 17220 B DB DF DT 212 000 229 000 21 600 23 300 2 200 3 000 151.5 83.5 107 173 1




7221 C DB DF DT 264 000 286 000 26 900 29 100 4 300 6 000 75.5 3.5 — 183 17321 A DB DF DT 335 000 385 000 34 500 39 500 2 200 2 800 144.3 46.3 — 218 17321 B DB DF DT 310 000 355 000 31 500 36 000 1 900 2 600 187.4 89.4 — 218 1



7222 C DB DF DT 286 000 320 000 29 200 32 500 4 000 5 600 79.5 3.5 — 193 17322 A DB DF DT 360 000 430 000 36 500 44 000 2 000 2 600 151.0 51.0 — 233 17322 B DB DF DT 325 000 395 000 33 500 40 000 1 800 2 400 196.8 96.8 — 233 1


7224 A DB DF DT 297 000 355 000 30 500 36 000 2 600 3 600 136.7 56.7 — 208 17224 B DB DF DT 269 000 325 000 27 400 33 000 1 900 2 600 180.5 100.5 — 208 1

7324 A DB DF DT 400 000 505 000 41 000 51 500 1 800 2 400 164.7 54.7 — 253 17324 B DB DF DT 365 000 460 000 37 500 47 000 1 600 2 200 214.4 104.4 — 253 1

Bearing Numbers (2)

Single Duplex


da Da ramin max max



100 140 20 1.1 0.6 47 500 51 500 4 850 5 250 — 5 600 8 000 38.0 107 133 1 0.804140 20 1.1 0.6 50 000 54 000 5 100 5 550 16.5 6 700 9 000 26.1 107 133 1 0.794150 24 1.5 1 68 500 70 500 6 950 7 200 — 4 500 6 000 48.1 109 141 1.5 1.48

150 24 1.5 1 75 500 77 000 7 700 7 900 16.0 6 300 9 000 28.7 109 141 1.5 1.46180 34 2.1 1.1 144 000 126 000 14 700 12 800 — 4 000 5 300 57.4 112 168 2 3.22180 34 2.1 1.1 130 000 114 000 13 300 11 700 — 2 800 3 800 75.7 112 168 2 3.28

180 34 2.1 1.1 149 000 127 000 15 200 12 900 14.5 5 600 8 000 35.7 112 168 2 3.65215 47 3 1.1 207 000 193 000 21 100 19 700 — 2 800 3 800 69.0 114 201 2.5 7.29215 47 3 1.1 190 000 178 000 19 400 18 100 — 2 400 3 400 89.6 114 201 2.5 7.43

105 145 20 1.1 0.6 48 000 54 000 4 900 5 500 — 5 600 7 500 39.2 112 138 1 0.82145 20 1.1 0.6 51 000 57 000 5 200 5 800 16.6 6 300 9 000 26.7 112 138 1 0.826160 26 2 1 80 000 81 500 8 150 8 350 — 4 300 5 600 51.2 115 150 2 1.84

160 26 2 1 88 000 89 500 9 000 9 100 15.9 6 000 8 500 30.7 115 150 2 1.82190 36 2.1 1.1 157 000 142 000 16 000 14 400 — 3 800 5 000 60.6 117 178 2 3.84190 36 2.1 1.1 142 000 129 000 14 500 13 100 — 2 600 3 600 79.9 117 178 2 3.92

190 36 2.1 1.1 162 000 143 000 16 600 14 600 14.5 5 300 7 500 37.7 117 178 2 4.33225 49 3 1.1 208 000 193 000 21 200 19 700 — 2 600 3 600 72.1 119 211 2.5 9.34225 49 3 1.1 191 000 177 000 19 400 18 100 — 2 400 3 200 93.7 119 211 2.5 9.43

110 150 20 1.1 0.6 49 000 56 000 5 000 5 750 — 5 300 7 100 40.3 117 143 1 0.877150 20 1.1 0.6 52 000 59 500 5 300 6 050 16.7 6 300 8 500 27.4 117 143 1 0.867170 28 2 1 96 500 95 500 9 850 9 700 — 4 000 5 300 54.4 120 160 2 2.28

170 28 2 1 106 000 104 000 10 800 10 600 15.6 5 600 8 000 32.7 120 160 2 2.26200 38 2.1 1.1 170 000 158 000 17 300 16 100 — 3 600 4 800 63.7 122 188 2 4.49200 38 2.1 1.1 154 000 144 000 15 700 14 700 — 2 600 3 400 84.0 122 188 2 4.58

200 38 2.1 1.1 176 000 160 000 17 900 16 300 14.5 5 000 7 100 39.8 122 188 2 5.1240 50 3 1.1 220 000 215 000 22 500 21 900 — 2 600 3 400 75.5 124 226 2.5 11.1240 50 3 1.1 201 000 197 000 20 500 20 100 — 2 200 3 000 98.4 124 226 2.5 11.2

120 165 22 1.1 0.6 67 500 77 000 6 900 7 850 — 4 800 6 300 44.2 127 158 1 1.15165 22 1.1 0.6 72 000 81 000 7 300 8 300 16.5 5 600 7 500 30.1 127 158 1 1.15180 28 2 1 102 000 107 000 10 400 10 900 — 3 600 5 000 57.3 130 170 2 2.45

215 40 2.1 1.1 183 000 177 000 18 600 18 100 — 3 200 4 500 68.3 132 203 2 6.22215 40 2.1 1.1 165 000 162 000 16 900 16 500 — 2 400 3 200 90.3 132 203 2 6.26

260 55 3 1.1 246 000 252 000 25 100 25 700 — 2 200 3 000 82.3 134 246 2.5 14.5260 55 3 1.1 225 000 231 000 23 000 23 600 — 2 000 2 800 107.2 134 246 2.5 14.4


d D B r r1min min

Limiting Speeds (1)

(min–1)Grease Oil


(min–1)Grease Oil


a0DB DF


Cr C0r Cr C0r


Cr C0r Cr C0r



r

r

r

jD jd

2B 2BB

a0 a0

1

r1

a

jD jd

ra

aa

2Bra

jD

ra

b jd a

rb

jD

rb

a jd b

ra

Back-to-BackDB

Face-to-FaceDF

TandemDT

Single

Factor

f0

Mass(kg)

approx




X Y X Y X Y X Y0.178 0.38 1 0 0.44 1.47 1 1.65 0.72 2.390.357 0.40 1 0 0.44 1.40 1 1.57 0.72 2.280.714 0.43 1 0 0.44 1.30 1 1.46 0.72 2.11

15º 1.07 0.46 1 0 0.44 1.23 1 1.38 0.72 2.001.43 0.47 1 0 0.44 1.19 1 1.34 0.72 1.932.14 0.50 1 0 0.44 1.12 1 1.26 0.72 1.823.57 0.55 1 0 0.44 1.02 1 1.14 0.72 1.665.35 0.56 1 0 0.44 1.00 1 1.12 0.72 1.63

25º — 0.68 1 0 0.41 0.87 1 0.92 0.67 1.4130º — 0.80 1 0 0.39 0.76 1 0.78 0.63 1.2440º — 1.14 1 0 0.35 0.57 1 0.55 0.57 0.93




i f0 Fa*Cor


15º 0.5 0.46 1 0.9225º 0.5 0.38 1 0.7630º 0.5 0.33 1 0.6640º 0.5 0.26 1 0.52


B 62


B 63

7926 A5 DB DF DT 120 000 172 000 12 300 17 500 3 400 4 800 96.3 48.3 — 174 17926 C DB DF DT 128 000 182 000 13 000 18 500 4 000 5 600 65.5 17.5 — 174 17026 A DB DF DT 191 000 251 000 19 400 25 600 2 600 3 600 128.3 62.3 — 194 1

7226 A DB DF DT 310 000 385 000 31 500 39 500 1 900 2 600 143.9 63.9 — 223 17226 B DB DF DT 278 000 350 000 28 300 35 500 1 700 2 400 191.0 111.0 — 223 1

7326 A DB DF DT 445 000 585 000 45 500 59 500 1 700 2 200 176.3 60.3 — 271 1.57326 B DB DF DT 405 000 535 000 41 500 54 500 1 500 2 000 230.0 114.0 — 271 1.5


7228 A DB DF DT 355 000 470 000 36 000 48 000 1 800 2 400 154.6 70.6 — 243 17228 B DB DF DT 320 000 425 000 32 500 43 500 1 600 2 200 205.6 121.6 — 243 1

7328 A DB DF DT 490 000 670 000 50 000 68 500 1 600 2 000 189.0 65.0 — 291 1.57328 B DB DF DT 445 000 615 000 45 500 63 000 1 400 1 900 246.6 122.6 — 291 1.5


7230 A DB DF DT 405 000 560 000 41 000 57 000 1 600 2 200 166.3 76.3 — 263 17230 B DB DF DT 365 000 510 000 37 000 52 000 1 500 2 000 221.2 131.2 — 263 1

7330 A DB DF DT 515 000 745 000 52 500 75 500 1 500 1 900 200.7 70.7 — 311 1.57330 B DB DF DT 470 000 680 000 48 000 69 500 1 300 1 800 262.2 132.2 — 311 1.5

7932 C DB DF DT 173 000 265 000 17 600 27 000 3 000 4 000 78.9 22.9 — 214 17032 A DB DF DT 252 000 355 000 25 700 36 000 1 700 2 400 153.5 77.5 — 233 17232 A DB DF DT 425 000 615 000 43 500 62 500 1 500 2 000 177.9 81.9 — 283 1

7232 B DB DF DT 385 000 555 000 39 500 57 000 1 400 1 900 236.8 140.8 — 283 17332 A DB DF DT 565 000 845 000 57 500 86 000 1 400 1 800 212.3 76.3 — 331 1.57332 B DB DF DT 515 000 770 000 52 500 78 500 1 200 1 700 277.8 141.8 — 331 1.5

7934 C DB DF DT 183 000 297 000 18 700 30 000 2 800 3 800 81.6 25.6 — 224 17034 A DB DF DT 300 000 430 000 31 000 43 500 1 600 2 200 166.1 82.1 — 253 17234 A DB DF DT 480 000 715 000 49 000 73 000 1 400 1 900 190.6 86.6 — 301 1.5

7234 B DB DF DT 435 000 650 000 44 000 66 500 1 300 1 700 253.4 149.4 — 301 1.57334 A DB DF DT 630 000 970 000 64 500 99 000 1 300 1 700 225.0 81.0 — 351 1.57334 B DB DF DT 575 000 890 000 59 000 90 500 1 100 1 600 294.3 150.3 — 351 1.5

Bearing Numbers (2)

Single Duplex


da Da ramin max max



130 180 24 1.5 1 74 000 86 000 7 550 8 750 — 4 300 6 000 48.1 139 171 1.5 1.54180 24 1.5 1 78 500 91 000 8 000 9 250 16.5 5 000 7 100 32.8 139 171 1.5 1.5200 33 2 1 117 000 125 000 12 000 12 800 — 3 400 4 500 64.1 140 190 2 3.68

230 40 3 1.1 189 000 193 000 19 300 19 600 — 2 400 3 200 72.0 144 216 2.5 7.06230 40 3 1.1 171 000 175 000 17 400 17 800 — 2 200 3 000 95.5 144 216 2.5 7.1

280 58 4 1.5 273 000 293 000 27 900 29 800 — 2 200 2 800 88.2 148 262 3 17.5280 58 4 1.5 250 000 268 000 25 500 27 400 — 1 900 2 600 115.0 148 262 3 17.6

140 190 24 1.5 1 75 000 90 000 7 650 9 200 — 4 000 5 600 50.5 149 181 1.5 1.63190 24 1.5 1 79 500 95 500 8 100 9 700 16.7 4 800 6 700 34.1 149 181 1.5 1.63210 33 2 1 120 000 133 000 12 200 13 500 — 3 200 4 300 67.0 150 200 2 3.9

250 42 3 1.1 218 000 234 000 22 300 23 900 — 2 200 3 000 77.3 154 236 2.5 8.92250 42 3 1.1 197 000 213 000 20 100 21 700 — 2 000 2 800 102.8 154 236 2.5 8.94

300 62 4 1.5 300 000 335 000 30 500 34 500 — 2 000 2 600 94.5 158 282 3 21.4300 62 4 1.5 275 000 310 000 28 100 31 500 — 1 700 2 400 123.3 158 282 3 21.6

150 210 28 2 1 96 500 115 000 9 850 11 800 — 3 800 5 000 56.0 160 200 2 2.97210 28 2 1 102 000 122 000 10 400 12 400 16.6 4 300 6 000 38.1 160 200 2 2.96225 35 2.1 1.1 137 000 154 000 14 000 15 700 — 2 400 3 000 71.6 162 213 2 4.75

270 45 3 1.1 248 000 280 000 25 300 28 500 — 2 000 2 800 83.1 164 256 2.5 11.2270 45 3 1.1 225 000 254 000 22 900 25 900 — 1 800 2 600 110.6 164 256 2.5 11.2

320 65 4 1.5 315 000 370 000 32 500 38 000 — 1 800 2 400 100.3 168 302 3 26320 65 4 1.5 289 000 340 000 29 400 34 500 — 1 600 2 200 131.1 168 302 3 25.9

160 220 28 2 1 106 000 133 000 10 800 13 500 16.7 3 800 5 000 39.4 170 210 2 3.1240 38 2.1 1.1 155 000 176 000 15 800 18 000 — 2 200 2 800 76.7 172 228 2 5.77290 48 3 1.1 263 000 305 000 26 800 31 500 — 1 900 2 600 89.0 174 276 2.5 14.1

290 48 3 1.1 238 000 279 000 24 200 28 400 — 1 700 2 400 118.4 174 276 2.5 14.2340 68 4 1.5 345 000 420 000 35 500 43 000 — 1 700 2 200 106.2 178 322 3 30.7340 68 4 1.5 315 000 385 000 32 000 39 500 — 1 500 2 000 138.9 178 322 3 30.8

170 230 28 2 1 113 000 148 000 11 500 15 100 16.8 3 600 4 800 40.8 180 220 2 3.36260 42 2.1 1.1 186 000 214 000 19 000 21 900 — 2 000 2 600 83.1 182 248 2 7.9310 52 4 1.5 295 000 360 000 30 000 36 500 — 1 800 2 400 95.3 188 292 3 17.3

310 52 4 1.5 266 000 325 000 27 200 33 000 — 1 600 2 200 126.7 188 292 3 17.6360 72 4 1.5 390 000 485 000 39 500 49 500 — 1 600 2 200 112.5 188 342 3 35.8360 72 4 1.5 355 000 445 000 36 000 45 500 — 1 400 2 000 147.2 188 342 3 35.6


d D B r r1min min

Limiting Speeds (1)

(min–1)Grease Oil


(min–1)Grease Oil


a0DB DF


Cr C0r Cr C0r


Cr C0r Cr C0r



rr

r

jD jd

2B 2BB

a0 a0

1

r

a

jD jd

ra

aa

2Bra

jD

ra

b jd a

rb

jD

ra

a jd b

ra

Back-to-BackDB

Face-to-FaceDF

TandemDT

Single

Factor

f0

Mass(kg)

approx




X Y X Y X Y X Y0.178 0.38 1 0 0.44 1.47 1 1.65 0.72 2.390.357 0.40 1 0 0.44 1.40 1 1.57 0.72 2.280.714 0.43 1 0 0.44 1.30 1 1.46 0.72 2.11

15º 1.07 0.46 1 0 0.44 1.23 1 1.38 0.72 2.001.43 0.47 1 0 0.44 1.19 1 1.34 0.72 1.932.14 0.50 1 0 0.44 1.12 1 1.26 0.72 1.823.57 0.55 1 0 0.44 1.02 1 1.14 0.72 1.665.35 0.56 1 0 0.44 1.00 1 1.12 0.72 1.63

25º — 0.68 1 0 0.41 0.87 1 0.92 0.67 1.4130º — 0.80 1 0 0.39 0.76 1 0.78 0.63 1.2440º — 1.14 1 0 0.35 0.57 1 0.55 0.57 0.93




i f0 Fa*Cor


15º 0.5 0.46 1 0.9225º 0.5 0.38 1 0.7630º 0.5 0.33 1 0.6640º 0.5 0.26 1 0.52


B 64


B 65

7936 C DB DF DT 236 000 370 000 24 000 37 500 2 600 3 600 90.6 24.6 — 244 17036 A DB DF DT 335 000 505 000 34 500 51 500 1 500 2 000 178.8 86.8 — 273 17236 A DB DF DT 495 000 770 000 50 500 78 500 1 400 1 800 196.3 92.3 — 311 1.57236 B DB DF DT 450 000 700 000 45 500 71 000 1 200 1 700 261.8 157.8 — 311 1.57336 A DB DF DT 665 000 1 070 000 68 000 109 000 1 200 1 600 236.6 86.6 — 371 1.57336 B DB DF DT 605 000 975 000 62 000 99 500 1 100 1 500 309.9 159.9 — 371 1.57938 C DB DF DT 239 000 385 000 24 400 39 000 2 400 3 400 93.3 27.3 — 254 17038 A DB DF DT 365 000 560 000 37 000 57 000 1 400 1 900 184.6 92.6 — 283 17238 A DB DF DT 510 000 825 000 52 000 84 000 1 300 1 700 208.0 98.0 — 331 1.57238 B DB DF DT 460 000 750 000 47 000 76 000 1 100 1 600 277.3 167.3 — 331 1.57338 A DB DF DT 730 000 1 200 000 74 500 122 000 1 100 1 500 248.3 92.3 — 390 27338 B DB DF DT 670 000 1 100 000 68 000 112 000 1 000 1 400 325.5 169.5 — 390 27940 C DB DF DT 305 000 490 000 31 500 50 000 2 200 3 200 102.3 26.3 — 273 17040 A DB DF DT 390 000 620 000 40 000 63 500 1 300 1 800 198.2 96.2 — 303 17240 A DB DF DT 550 000 900 000 56 000 92 000 1 200 1 600 219.6 103.6 — 351 1.57240 B DB DF DT 495 000 815 000 50 500 83 000 1 100 1 500 292.9 176.9 — 351 1.57340 A DB DF DT 770 000 1 320 000 78 500 134 000 1 100 1 400 259.0 99.0 — 410 27340 B DB DF DT 700 000 1 200 000 71 500 123 000 950 1 300 340.1 180.1 — 410 2

Bearing Numbers (2)

Single Duplex


da Da ramin max max



180 250 33 2 1 145 000 184 000 14 800 18 800 16.6 3 200 4 500 45.3 190 240 2 4.9280 46 2.1 1.1 207 000 252 000 21 100 25 700 — 1 900 2 400 89.4 192 268 2 10.5320 52 4 1.5 305 000 385 000 31 000 39 000 — 1 700 2 200 98.2 198 302 3 18.1320 52 4 1.5 276 000 350 000 28 100 35 500 — 1 500 2 000 130.9 198 302 3 18.4380 75 4 1.5 410 000 535 000 41 500 54 500 — 1 500 2 000 118.3 198 362 3 42.1380 75 4 1.5 375 000 490 000 38 000 50 000 — 1 300 1 800 155.0 198 362 3 42.6

190 260 33 2 1 147 000 192 000 15 000 19 600 16.7 3 000 4 300 46.6 200 250 2 4.98290 46 2.1 1.1 224 000 280 000 22 800 28 600 — 1 800 2 400 92.3 202 278 2 11.3340 55 4 1.5 315 000 410 000 32 000 42 000 — 1 600 2 200 104.0 208 322 3 22.4340 55 4 1.5 284 000 375 000 28 900 38 000 — 1 400 2 000 138.7 208 322 3 22.5400 78 5 2 450 000 600 000 46 000 61 000 — 1 400 1 900 124.2 212 378 4 47.5400 78 5 2 410 000 550 000 42 000 56 000 — 1 300 1 700 162.8 212 378 4 47.2

200 280 38 2.1 1.1 189 000 244 000 19 300 24 900 16.5 2 800 4 000 51.2 212 268 2 6.85310 51 2.1 1.1 240 000 310 000 24 500 31 500 — 1 700 2 200 99.1 212 298 2 13.7360 58 4 1.5 335 000 450 000 34 500 46 000 — 1 500 2 000 109.8 218 342 3 26.5360 58 4 1.5 305 000 410 000 31 000 41 500 — 1 300 1 800 146.5 218 342 3 26.6420 80 5 2 475 000 660 000 48 500 67 000 — 1 300 1 800 129.5 222 398 4 54.4420 80 5 2 430 000 600 000 44 000 61 500 — 1 200 1 600 170.1 222 398 4 55.3


d D B r r1min min

Limiting Speeds (1)

(min–1)Grease Oil


(min–1)Grease Oil


a0DB DF


Cr C0r Cr C0r


Cr C0r Cr C0r



rr

r

jD jd

2B 2BB

a0 a0

1

r

a

jD jd

ra

aa

2Bra

jD

ra

b jd a

rb

jD

ra

a jd b

ra

Back-to-BackDB

Face-to-FaceDF

TandemDT

Single

Factor

f0

Mass(kg)

approx




X Y X Y X Y X Y0.178 0.38 1 0 0.44 1.47 1 1.65 0.72 2.390.357 0.40 1 0 0.44 1.40 1 1.57 0.72 2.280.714 0.43 1 0 0.44 1.30 1 1.46 0.72 2.11

15º 1.07 0.46 1 0 0.44 1.23 1 1.38 0.72 2.001.43 0.47 1 0 0.44 1.19 1 1.34 0.72 1.932.14 0.50 1 0 0.44 1.12 1 1.26 0.72 1.823.57 0.55 1 0 0.44 1.02 1 1.14 0.72 1.665.35 0.56 1 0 0.44 1.00 1 1.12 0.72 1.63

25º — 0.68 1 0 0.41 0.87 1 0.92 0.67 1.4130º — 0.80 1 0 0.39 0.76 1 0.78 0.63 1.2440º — 1.14 1 0 0.35 0.57 1 0.55 0.57 0.93




i f0 Fa*Cor


15º 0.5 0.46 1 0.9225º 0.5 0.38 1 0.7630º 0.5 0.33 1 0.6640º 0.5 0.26 1 0.52


B 66

DOUBLE-ROW ANGULAR CONTACT BALL BEARINGSBore Diameter 10 – 85 mm

B 67

10 30 14.3 0.6 7 150 3 900 730 400 17 000 22 000 520012 32 15.9 0.6 10 500 5 800 1 070 590 15 000 20 000 5201

15 35 15.9 0.6 11 700 7 050 1 190 715 13 000 17 000 520242 19 1 17 600 10 200 1 800 1 040 11 000 15 000 5302

17 40 17.5 0.6 14 600 9 050 1 490 920 11 000 15 000 520347 22.2 1 21 000 12 600 2 140 1 280 10 000 13 000 5303

20 47 20.6 1 19 600 12 400 2 000 1 270 10 000 13 000 520452 22.2 1.1 24 600 15 000 2 510 1 530 9 000 12 000 5304

25 52 20.6 1 21 300 14 700 2 170 1 500 8 500 11 000 520562 25.4 1.1 32 500 20 700 3 350 2 110 7 500 10 000 5305

30 62 23.8 1 29 600 21 100 3 000 2 150 7 100 9 500 520672 30.2 1.1 40 500 28 100 4 150 2 870 6 300 8 500 5306

35 72 27 1.1 39 000 28 700 4 000 2 920 6 300 8 000 520780 34.9 1.5 51 000 36 000 5 200 3 700 5 600 7 500 5307

40 80 30.2 1.1 44 000 33 500 4 500 3 400 5 600 7 100 520890 36.5 1.5 56 500 41 000 5 800 4 200 5 300 6 700 5308

45 85 30.2 1.1 49 500 38 000 5 050 3 900 5 000 6 700 5209100 39.7 1.5 68 500 51 000 7 000 5 200 4 500 6 000 5309

50 90 30.2 1.1 53 000 43 500 5 400 4 400 4 800 6 000 5210110 44.4 2 81 500 61 500 8 300 6 250 4 300 5 600 5310

55 100 33.3 1.5 56 000 49 000 5 700 5 000 4 300 5 600 5211120 49.2 2 95 000 73 000 9 700 7 450 3 800 5 000 5311

60 110 36.5 1.5 69 000 62 000 7 050 6 300 3 800 5 000 5212130 54 2.1 125 000 98 500 12 800 10 000 3 400 4 500 5312

65 120 38.1 1.5 76 500 69 000 7 800 7 050 3 600 4 500 5213140 58.7 2.1 142 000 113 000 14 500 11 500 3 200 4 300 5313

70 125 39.7 1.5 94 000 82 000 9 600 8 400 3 400 4 500 5214150 63.5 2.1 159 000 128 000 16 200 13 100 3 000 3 800 5314

75 130 41.3 1.5 93 500 83 000 9 550 8 500 3 200 4 300 521580 140 44.4 2 99 000 93 000 10 100 9 500 3 000 3 800 521685 150 49.2 2 116 000 110 000 11 800 11 200 2 800 3 600 5217


d D B rmin

Limiting Speeds (min–1)

Grease Oil

Basic Load Ratings(N) {kgf}

Cr C0r Cr C0r

BearingNumbers

jD jda0

r

rB

jD jd

ra

ra

aa

14.5 15 25 0.6 0.05016.7 17 27 0.6 0.060

18.3 20 30 0.6 0.07022.0 21 36 1 0.11

20.8 22 35 0.6 0.09025.0 23 41 1 0.14

24.3 26 41 1 0.1226.7 27 45 1 0.23

26.8 31 46 1 0.1931.8 32 55 1 0.34

31.6 36 56 1 0.2936.5 37 65 1 0.51

36.6 42 65 1 0.4341.6 44 71 1.5 0.79

41.5 47 73 1 0.5745.5 49 81 1.5 1.05

43.4 52 78 1 0.6250.6 54 91 1.5 1.4

45.9 57 83 1 0.6755.6 60 100 2 1.95

50.1 64 91 1.5 0.9660.6 65 110 2 2.3

56.5 69 101 1.5 1.3569.2 72 118 2 3.15

59.7 74 111 1.5 1.6572.8 77 128 2 3.85

63.8 79 116 1.5 1.878.3 82 138 2 4.9

66.1 84 121 1.5 1.969.6 90 130 2 2.575.3 95 140 2 3.4

Load Center Spacings(mm)a0

Mass(kg)

approx


da Da ramin max max

Fa/Fr≤e Fa/Fr>e

X Y X Ye

1 0.92 0.67 1.41 0.68

Dynamic Equivalent Load

P =XFr +YFa

Static Equivalent Load

P0 =Fr +0.76 Fa

B 69B 68

FOUR-POINT CONTACT BALL BEARINGSBore Diameter 30 – 95 mm

30 62 16 1 31 000 45 000 3 150 4 600 8 500 12 00072 19 1.1 46 000 63 000 4 700 6 450 8 000 11 000

35 72 17 1.1 41 000 61 500 4 200 6 250 7 500 10 00080 21 1.5 55 000 80 000 5 600 8 150 7 100 9 500

40 80 18 1.1 49 000 77 500 5 000 7 900 6 700 9 00090 23 1.5 67 000 100 000 6 850 10 200 6 300 8 500

45 85 19 1.1 55 000 88 500 5 600 9 000 6 300 8 500100 25 1.5 87 500 133 000 8 900 13 500 5 600 7 500

50 90 20 1.1 57 000 97 000 5 850 9 900 5 600 8 000110 27 2 102 000 159 000 10 400 16 200 5 000 6 700

55 100 21 1.5 71 000 122 000 7 200 12 500 5 300 7 100120 29 2 118 000 187 000 12 000 19 100 4 500 6 300

60 110 22 1.5 85 500 150 000 8 750 15 300 4 800 6 300130 31 2.1 135 000 217 000 13 800 22 200 4 300 5 600

65 120 23 1.5 97 500 179 000 9 950 18 300 4 300 6 000140 33 2.1 153 000 250 000 15 600 25 500 3 800 5 300

70 125 24 1.5 106 000 197 000 10 800 20 100 4 000 5 600150 35 2.1 172 000 285 000 17 500 29 100 3 600 5 000

75 130 25 1.5 110 000 212 000 11 200 21 700 3 800 5 300160 37 2.1 187 000 320 000 19 100 33 000 3 400 4 800

80 125 22 1.1 77 000 167 000 7 850 17 000 3 800 5 300140 26 2 124 000 236 000 12 600 24 100 3 600 5 000170 39 2.1 202 000 360 000 20 600 37 000 3 200 4 300

85 130 22 1.1 79 000 176 000 8 050 18 000 3 800 5 000150 28 2 143 000 276 000 14 600 28 200 3 400 4 800180 41 3 218 000 405 000 22 300 41 000 3 000 4 000

90 140 24 1.5 94 000 208 000 9 600 21 200 3 400 4 800160 30 2 164 000 320 000 16 700 32 500 3 200 4 300190 43 3 235 000 450 000 23 900 45 500 2 800 3 800

95 145 24 1.5 96 500 220 000 9 800 22 500 3 400 4 500170 32 2.1 177 000 340 000 18 000 35 000 3 000 4 000200 45 3 251 000 495 000 25 600 50 500 2 600 3 600


d D B rmin

Limiting Speeds(min–1)

Grease Oil


Ca C0a Ca C0a

QJ 206 32.2 36 56 1 0.24QJ 306 35.7 37 65 1 0.42

QJ 207 37.5 42 65 1 0.35QJ 307 40.3 44 71 1.5 0.57

QJ 208 42.0 47 73 1 0.45QJ 308 45.5 49 81 1.5 0.78

QJ 209 45.5 52 78 1 0.52QJ 309 50.8 54 91 1.5 1.05

QJ 210 49.0 57 83 1 0.59QJ 310 56.0 60 100 2 1.35

QJ 211 54.3 64 91 1.5 0.77QJ 311 61.3 65 110 2 1.75

QJ 212 59.5 69 101 1.5 0.98QJ 312 66.5 72 118 2 2.15

QJ 213 64.8 74 111 1.5 1.2QJ 313 71.8 77 128 2 2.7

QJ 214 68.3 79 116 1.5 1.3QJ 314 77.0 82 138 2 3.18

QJ 215 71.8 84 121 1.5 1.5QJ 315 82.3 87 148 2 3.9

QJ 1016 71.8 87 118 1 1.05QJ 216 77.0 90 130 2 1.85QJ 316 87.5 92 158 2 4.6

QJ 1017 75.3 92 123 1 1.1QJ 217 82.3 95 140 2 2.2QJ 317 92.8 99 166 2.5 5.34

QJ 1018 80.5 99 131 1.5 1.45QJ 218 87.5 100 150 2 2.75QJ 318 98.0 104 176 2.5 6.4

QJ 1019 84.0 104 136 1.5 1.5QJ 219 92.8 107 158 2 3.35QJ 319 103.3 109 186 2.5 7.4

Load Center Spacings

(mm)a0

BearingNumbers


da Da ramin max max

Mass(kg)

approx

Remarks When using four-point contact ball bearings, please contact NSK.

r

r

jD jd

a

B

0

r

jD jd

a

ra

aa


Pa =Fa


P0a =Fa

B 71B 70

FOUR-POINT CONTACT BALL BEARINGSBore Diameter 100 – 200 mm

100 150 24 1.5 98 500 232 000 10 000 23 700 3 200 4 300180 34 2.1 199 000 390 000 20 300 39 500 2 800 3 800215 47 3 300 000 640 000 31 000 65 500 2 400 3 400

105 160 26 2 115 000 269 000 11 800 27 400 3 000 4 000190 36 2.1 217 000 435 000 22 100 44 500 2 600 3 600225 49 3 305 000 640 000 31 000 65 500 2 400 3 200

110 170 28 2 139 000 315 000 14 200 32 000 2 800 3 800200 38 2.1 235 000 490 000 24 000 50 000 2 600 3 400240 50 3 320 000 710 000 32 500 72 500 2 200 3 000

120 180 28 2 147 000 350 000 15 000 36 000 2 600 3 600215 40 2.1 265 000 585 000 27 000 60 000 2 400 3 200260 55 3 360 000 835 000 36 500 85 500 2 000 2 800

130 200 33 2 169 000 415 000 17 300 42 000 2 400 3 200230 40 3 274 000 635 000 28 000 65 000 2 200 3 000280 58 4 400 000 970 000 40 500 99 000 1 900 2 600

140 210 33 2 172 000 435 000 17 600 44 500 2 200 3 000250 42 3 315 000 775 000 32 000 79 000 2 000 2 800300 62 4 440 000 1 110 000 44 500 114 000 1 700 2 400

150 225 35 2.1 197 000 505 000 20 100 51 500 2 000 2 800270 45 3 360 000 925 000 36 500 94 500 1 800 2 600320 65 4 460 000 1 230 000 47 000 125 000 1 600 2 200

160 240 38 2.1 224 000 580 000 22 800 59 000 1 900 2 600290 48 3 380 000 1 010 000 39 000 103 000 1 700 2 400340 68 4 505 000 1 400 000 51 500 143 000 1 500 2 000

170 260 42 2.1 268 000 705 000 27 300 72 000 1 800 2 400310 52 4 425 000 1 180 000 43 500 121 000 1 600 2 200360 72 4 565 000 1 610 000 57 500 164 000 1 400 2 000

180 280 46 2.1 299 000 830 000 30 500 84 500 1 700 2 200320 52 4 440 000 1 270 000 45 000 130 000 1 500 2 000380 75 4 595 000 1 770 000 60 500 180 000 1 300 1 800

190 290 46 2.1 325 000 925 000 33 000 94 000 1 600 2 200340 55 4 455 000 1 360 000 46 500 139 000 1 400 2 000400 78 5 655 000 1 980 000 67 000 202 000 1 300 1 700

200 310 51 2.1 345 000 1 020 000 35 500 104 000 1 500 2 000360 58 4 490 000 1 480 000 49 500 151 000 1 300 1 800420 80 5 690 000 2 180 000 70 500 222 000 1 200 1 600


d D B rmin

Limiting Speeds(min–1)

Grease Oil


Ca C0a Ca C0a

QJ 1020 87.5 109 141 1.5 1.6QJ 220 98.0 112 168 2 4.0QJ 320 110.3 114 201 2.5 9.3QJ 1021 92.8 115 150 2 2.0QJ 221 103.3 117 178 2 4.7QJ 321 115.5 119 211 2.5 10.5QJ 1022 98.0 120 160 2 2.5QJ 222 108.5 122 188 2 5.6QJ 322 122.5 124 226 2.5 12.5QJ 1024 105.0 130 170 2 2.65QJ 224 117.3 132 203 2 6.9QJ 324 133.0 134 246 2.5 15.4QJ 1026 115.5 140 190 2 4.0QJ 226 126.0 144 216 2.5 7.7QJ 326 143.5 148 262 3 19QJ 1028 122.5 150 200 2 4.3QJ 228 136.5 154 236 2.5 9.8QJ 328 154.0 158 282 3 24QJ 1030 131.3 162 213 2 5.2QJ 230 147.0 164 256 2.5 12QJ 330 164.5 168 302 3 29QJ 1032 140.0 172 228 2 6.4QJ 232 157.5 174 276 2.5 15QJ 332 175.1 178 322 3 31QJ 1034 150.5 182 248 2 8.6QJ 234 168.0 188 292 3 19.5QJ 334 185.6 188 342 3 41QJ 1036 161.0 192 268 2 11QJ 236 175.1 198 302 3 20.5QJ 336 196.1 198 362 3 48QJ 1038 168.0 202 278 2 11.5QJ 238 185.6 208 322 3 23QJ 338 206.6 212 378 4 54.5QJ 1040 178.6 212 298 2 15QJ 240 196.1 218 342 3 27QJ 340 217.1 222 398 4 61.5

Load Center Spacings

(mm)a0

BearingNumbers


da Da ramin max max

Mass(kg)

approx

Remarks When using four-point contact ball bearings, please contact NSK.

r

r

jD jd

a

B

0

r

jD jd

a

ra

aa


Pa =Fa


P0a =Fa

· 2015. 3. 14. · B 47 B 46. Table 1 Standard Cages for Angular Contact Ball Bearings. α....

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Transcript of · 2015. 3. 14. · B 47 B 46. Table 1 Standard Cages for Angular Contact Ball Bearings. α....